Cultivator.



I. M. WRIGHT.

CULTIVATOR.

APPLICATION FILED MAYIS E917- Patented Oct. 1, 1918.

4 SHEETS-SHEET I.

J. M. WRIGHT. CULTIVATOR.

APPLICATION FILED MAY 15. I917.

Patented Oct. 1, 191.8.

4 SHEETS-SHEET Z.

J. M. WRIGHT.

CULTIVATOR.

APPLICATION FILED MAY 15, 1917.

L280,353. Patented 001;. 1, 1918.

4 SHEETS-SHEET 3- J. M. WRIGHT. CULTIVATOR. APPLICATION man MAY1 5.I917.

Patented Oct. 1, 1918.

4 SHEETS-SHEET 4.

sra rps ra'rnur orrrcn.

JOHN M. WRIGHT, OF BRAlNARD NEBRAsKA, ASSIGNQR T0 DEMPSTER MILL MANU-FACTURING COMPANY, OF BEATRICE, NEBRASKA, A CORPORATION OF NEBRASKA.

CULTIVATOR.

menses.

To all whom it may concern:

le it known that I, JOHN M. VVRIGIIT, a cltizen of the United States,and resident of Braina-rd, county of Butler, and State of tion of theaccom anying drawings showing what I now believe to be the preferredmechanical expression or embodiment from among other constructions andarrangements within the spirit and scope thereof.

- An object of the invention is to reduce to the minimum, the drop ordownward movement of the frame and operator, when the shovel beams of awheeled riding cultivator are lifted out of the ground.

A further object of the invention is to provide a wheeled ridingcultivator having vertically movable shovel beams and a seat and framestructure wherein the driver approximately counterbalances the frontportion of the frame, with a structure and arrangement whereby verticalmovement of the frame and seat when the shovel beams enter and arelifted out of the ground, is reduced to the minimum.

A further object of the invention is to provide a wheeled ridingcultivator having a vertically movable shovel beam with draftconnections so arranged as to automatically aid in lifting the beams.

- 'A further object of the invention is to provide a wheeled cultivatorhaving vertically movable shovel beams, with draft connectionsconstructed and arranged to automaticall y increase and decrease thelifting leverage of the draft connection on said beams when the beamsare being raised and lowered. a j

A further object of the invention is to provide improvements in thecoupling arrangements betwen the draft connections connecting the shovelbeam couplings and the axle of wheeled cultivators, whereby the leverageof the draft connections on the beams will not be automaticallyvariable.

A further object of the invention is to pro- Specification of LettersPatent.

Patented Oct. 1, 1918.

Application filed May 15, 1917. Serial No. 168,773.

vide operative connections between the shovel beam couplings of wheeledriding cultlvators and the draft bars extending to the wheel axle, withsaid connect-ions arranged below the horizontal axes on which saidcouplings swing vertically with the beams to exert lifting action onsaid beams.

A further object of the invention is to'provide certain improvements inwheeled riding cultivators wherein the weight of the rider constantlytends to depress the frame and increase the distance between the shovelbeam couplings and the wheel axis, whereby the weight of the rider willbe automatically utilized to aid in lifting the shovels out of theground, and whereby the necessary drop of the frame and rider when theshovel and arrangements as more fully and particu-.

larly set forth and pointed out hereinafter.

Referring to the accompanying draw Figure 1, is a perspective view ofthe implement of my invention, the seat and one of the supporting wheelsnot being shown.

Fig; 2, is a plan of the implement. a

Fig. 3, is a side elevation, the axle being brokenaway and onesupporting wheel not being shown, the parts being shown in normaloperative positions.

Fig. 4, is a view similar to Fig. 3, but showing the partselevatedfron1.nor1nal operative positions.

In the particular embodiment illustrated, I show a main frame comprisinga stifl elevated longitudinal center tongue 2, at its rear end restingand-fixedly held down on the central portion of a transverse or crossmember 17 consisting of a strong elongated horizontal metal plate havingupstanding or vertical ends 17*, with their top extremities bentoutwardly to horizontal positions and forming supports 17, elevatedabove the frame, and spaced longitudinal side or frame bars 9.

The tongue is arranged approximately midway between these bars, whichconverge at their front ends and are there bolted or otherwise fixed toa rearward portion of the toi'igue. The inain, parallel portions of thebars extend rearwardly over the ends of the cross member 17 and arebolted or otherwise fixed to the upstanding port-ions 1'? thereof, whilethe rear end portions of the bars extend rearwardly beyond the crossmember 17, and preferably terminate in downwardly nally through and isrotatively mounted in said sleeve and the opposite end shanks or crankarms of said axleexten'd downwardly and rearwardly at an inclinationfrom said elevated central portion and at their lower rear ends areturned outwardly to form the a lined axle spindles l on which the groundor supporting wheels 1 are mounted.

The operators seat 8, is arranged a distance in rear ofthe verticalplane in which the wheel axes are located, and said seat is carried by asuitable support forming a longitudinal rearward extension of the mainframe of the cultivator. This support comprises a pair of rigidlyconnected seat bars 7 the parallel front portions of which extend.forwardly at the inner facesof the longitudinal frame bars 9,and-beneaththe a'xle sleeve 16 and over the cross member 17. At their front ends,the seat bars 7 are provided with lateral stops or projections 7extending outwardly under the frame bars 9 and abutting'the. loweredgesthereof. Intermediate their lengths, the seat bars rest onsupporting blocks 22, arranged at the inner side faces of the d'ependingrear ends of the frame bars 9. The seat bars loosely engage the framebars and said blocks and said seat bars cansl'ide longitudinally of theframe bars to move the seat forwardly or rearwardly in adjusting theparts so that the weight of the rider will aproximately counterbalancethe "front part "of the machine. In other words, when the rider is inhis seat, the machine is approximately balan'ced on the a'linedwheelaixes. v eans are also. provided "for adjusting the seat verticallywith respect to the cultivator frame to suit different operators. Forinstance, I show the supporting blocks 22 carried by and rotativelymounted on a cross bolt 22 carried by the depending endsof the framebars and provided with clamping means such as nuts and a spacing sleevewhereby the blocks can be clamped in position. Each block is rectangularhaving its four edges arranged at different distances from the boltholereceiving said bolt. 7

The seat bars reston and are supported by the top edges of the blocks,and hence said bars can be held at diiierent elevations by rotating theblocks to vary the elevation of their top edges.

At the front'of "the main frame, I show an ovcner bar 23, extendingacross and pivotally joined to the "tongue and having pull standards15-, pivotally joined to an'ddepending from itsends. I also showsw-iiigletrees 24, coupledto intermediate portions of the pullstandards.

At adistance in rear of the eve'ner, I pro vide the beam arch 3 at itselevated central portion extending over and fixed to the tongue and alsoextending over the frame sidebars 9, and depending at the outer sidesthereof and rigidly clipped or otherwise secured thereto. The to er ends"of the beam arch 3 project horizontally and outwardly in oppositedirectidns for coupling to the shovel beanie, and at theirouterextremities receive the loose or flexible pull connections 15 fromthel'ower ends of the pull standards 15.

The frame "and beam arch a re braced and stiffened by in'cline'cl braces14 at their upper ends bolt-ed or otherwise secured to the up standingportions 17 of the frame cross member 17 and at their lower ends boltedor otherwise secured to the tower parts of the vertical legs offthearch.

In the example illustrated, I show a pair of independently movable gangsor shovel cultivator or "pl'o'w) beams 5, provided with any suitablestandards 20, carrying any suit. able implements such "as shovels 1 9.These beams are also "pro vided withmeans where- 'by the beams can beindependently guided. and swung lateraly and vertically by the riderfrom his seat 8, and. such means com-' prise handles 6; p

The beams are coupled to the lower horizontal portions, respectively, ofthe beam arch to permit vertical and lateral swing,

and various coupling devices can be provided for this purpose.

Asan exainplef-Ishow each coupling coniprising an elongated horizontalsleeve 12, rotativel-y confined on a lower horizontal arm of the beamarch, ha ving vertically disposed coupling anemb'er 11, clipped: "orotherwise fixed to the central portion of and arranged behindthe'sleeve, the vertically disposed coupling member 1 1 fixed to and formingthe front end or nose of "the gang,

and the vertical coup-ling pin 18 uniting coupling members 11, l -1against independent vertical movement and permitting independent lateralswing of the beam and member 11 with respect to. member 11.

When the beam is swung vertically the coupling members 11,11, movetogether as a longitudinal continuation of the beam, and the sleeve 12rotates on the beam arch arm which constitutes the horizontal axis onwhich the beam swings. When the beam swings laterally or horizontally,the coupling pin 13 constitutes the vertical axis on which the beamswings. In the example illustrated, the coupling member 11 is formedwith an elongated vertical here: while the coupling member 11 is .forkedto rovide upper and lower eyes above and. elow and registering with thebore to -,receive the coupling pin. The coupling pin is elongated toprovlde an extension 13 depending a distance below the lower eye ofmember 11, and the lower end of the pin is provided with a laterallyprojecting stop 13*. i r i T Suitable draft connections are providedbetween the draft devices to the beams and the lower end portions of thearched axle to maintain the desired relation or position of the wheelaxis with respect to the axial line on which the sleeves 12 rotate andconsequently to determine the elevation of the cultivator frame. Asmeans which advantageously perform this function, I show draft bars 10forked at their front ends and loosely straddling the depending ends 13of the coupling pins and carrying grooved rolls 21, mounted in the frontends of the forks and bearing against the front sides of said dependingpin ends and adapted to travel vertically thereon, while the rearportions of these draft bars extend loosely through vertically elongatedyokes or guideways 18 fixed to and depending from the horizontal lowerarms or spindles of the axle inwardly beyond the wheel hubs and at theirlower ends having cross pins or stops 18%. j j

Each draft bar has a longitudinal series of notches 10 in its lower edgeany one of which is adapted to receive the cross portion 18 of the yokereceiving said bar. The rear ends of the draft-bars can'form handles 18projecting rearwardly beyond the yokes. Each draft bar can be raised inits yoke to disengage its notches from pin 18, .and the' wheels can thenbe moved forwardly or rearwardly, (the axle rotates in sleeve 16 as thearms or shanks thereof swing forwardly or rearwardly to raise or permitlowering of the frame as the wheels advance or move back) and the draftbars can thenflbe dropped so that notches thereof will receive pins 18and lock the parts in the desired normal adjustment.

In this connection it will be noted, that the elevation (distance abovethe ground) of the main frame and of the sleeves 12 is determined by theangle or the arched axle crank arms or shanks, by the distancebetweensleeves 12 and the wheel axis, and that this distance is controlled bythe draft bars 10 and the particular notches thereof in whichpins 18 arelocated. The elevation of the .main frame, for normal operation of-themachine, can be varied to suit different operators or differentconditions, by locating the stop pins 18 in difierent notches of thedraft bars, as herein before described, to increase or decrease thedistance between the wheel axis and sleeves 12. In other words, theelevation of the frame and its seat in normal operation is varied lbcyshortening or lengthening the draft ars.

The pull of the draft animals and the weight of the main frame and partsand the operator carried thereby, constantly tend to force the wheelsrearwardly with respect to sleeves 12 through the medium of the archedaxle, and permit the frame to drop, but this tendency is resisted by thedraft bars 10 which hold the wheels a ainst fore and aft movementindependent y of theframe, to maintain the predetermined distance fornormal operation. When the operator is in his seat 8, the draft bars 10are under a constant tension or rearward pull which is sufiicient tomaintain the front ends of the draft bars at the upper ends of thevertical coupling pin extensions 13 and against the lower eyes ofcoupling members 11 during normal operation of the machine when theshovel beams are a proximately at their lowest position with the shovelsin the ground. The rear ends of the draft bars are coupled to the archedaxle at points below the wheel axis through the medium of the dependingyokes 18 which act as lever or crank arms on the shanks of the axles,axle spindles 4 then constituting the fulcrums, and hence the yokes 18swing upwardly as the frame lowers and downwardly and forwardly as theframe is elevated.

The draft rods also, preferably, incline downwardly and forwardly fromyokes 18 to-the coupling pins and at their front ends are applied to theshovel beam couplings at points below the sleeves 12, through lever: ageconnections embodying the rigid coupling pins and the coupling members11, 11*, the alined axes of sleeves 12,, constituting the fulcrumsforthese connections.

During the normal operation of the cultivator, when the shovels are inthe ground and the front ends of the draft bars are at theirlimits ofupward movement on the coupling pins where they are held under tensionby the rearward pull of the arched axle on said bars by reason of thetendency of said bars to move up to thedirect line of strain fromsleeves 12 to the wheel axis, said bars exert a certain lifting actionon the shovel beams; However, this leverage action on-the shovel beamsis not 'ebiectionable but on the cont-vary beneficial in tending tocounterbalance said beams 'wi-tlm out lifting. the 'shove is out of theground or interfering with the "proper operation the-re o'forincreasii'ig the effort of the operator in maintaining the shovel beamsin proper 0p eiativepositi0n. However, the instant the O PQFQItOL bGgiHSto hit 01' Sw ng the sh-o-i' el beams upwardly, the colfipiinlg pinsswing therewith and begin-totilt ifi're'rn the vertical, and theieaiward pull of the drafit balfiS onsaid pins eonstitutes a substantialaid and assis'tanee to the operator In 'elevating the shove1 beamsrelieving him of muchpo'rtidns 0-1? said pins helow eeup'hng 1nemhers llen'd the wheel axis a nd hence per niittin g the roll'elfs 21 totraveldown-waidliy on said pins tinder the-constant pull of the draftbars, until thefgr'ent ends of said bar engage these-bps 13, therebyconstantly and aiiit omatically inehea'sihg the leverage (if the hen lifting aetion of the draft bars, asthe beams-swing dewafdly. i

.VVheii *the coupling pins begin to t'i'lt as the shoveh-heains are1ifted-, th'e e'uitivaiter fi'amehtaftsto drop and the Wheels begin tomove i'eaiwahdlj' because the constantly increasing tilt of the"ceupiing "pins grad ually' shorteiisthe distance between the dfsleeves12 andthe wheel eenters and hence permits rearward movement of the draftbars, and the Weight of the eultivaton frame and ep'erator keep the"draft bans 'imdeeeonstunt 'reztmvaid-phll =01: tension on the eonplingpi nswith a consequent lifting act on on the shovel beams. As the beamsswing up theliftifng leverag of theydraft bars en said beains constantlyinei'eases because the rollers 21 travel down said pins as theinclination of the pins increases.

W'Vh'enthe shoveh beanie are-depressed and fl gllil i fdrc'edi into theground, the "C Ofipling pins swing forwardly toward the verticalposition and c011'sequent1y tend to gradually inciease the distancebetween the sleeves [t2 and the Wheel axis and hence the-'d i'a' ft barsare drawn foin ai'dlyyand placed under a ferWa-Id tension which sW-ings'the hi-Ins e f the arche'qha-xle fbiwa-i'dly to'ele'vate the enltivato'rdframewo 'iioi'inzfl qeosi'tien and inove the "Wheels ferwar'dly. As thecoupling pins thus swing forwardly, the reliefs of the draft bars travelupwardly on the coupling pins and conseqilently cause said bars 'toswing upwardly andeonstanfl and automatically decrease the lifting;leverage of said barsonthe beams nntii'the beams reach theiriowermestpositions Withtheshovels in the ground, andfthe di e-ft bars reach theiriippe'im'ost positions against the lower eyes of coiipling memhersll inwhieh positioins' the lifting leverage actien of the hars on the beamsis at the minimum. o Y r I't wii'l he noted that theeuitwatoitrainee issuspended from. the arehed axle, that the.

axis on which the arched axie swings is e1ein Whieh the axis on whichthe axle swings 'is l oeated. Material advantages are thereby attainedinasinueh as theevertieal distance of travel of the cultivator frameWhen the shovel beams are raised and lowered, is redueed to the lflil'liln u'ln. it is exceedingly desirable in cuitivators 01- other farm toolsof this general type, to reduce to the in-iniminn the distancethecultivator frame "drops when the shovel =bean1s are elevated, andeonseqaently to l e'd uee to the ininimuin the distance the cultivatorflame and its seat must be elevated 'i-v'hen the shovel beains areforced down he carry the shovels into thegronnd.

'I do not Wish to lii'nit my invention to the particulareiiltivetondraftdevices illus trated, no'Pto the t'ongue type: of farmtool, and iti'sei' ident that vai'ionsfehanges, inodi fieationsnnd vi iations mi'ghtheresorted to Without? de arting from the spirit and scope of my inventionand 'henee I do not wish to Iin'iit -ysel f to the exact diselosureshereof. hat I claim is:-

' 1. In a CH113iViIt01, i11 combination, a-centrail "longitudinaltongue, *fmme bars fixed thereto and "extending reafwatdl y at op esitesides thereof, a Cross member beneath said tdnghe and bars and fixed{thereto and having hps tandingends, a seat support e3:- te'ndingrearwardly fron'isafid hats and pro vided with a rear seat, an archedaxle e1nb'odying elongated inclined depending shanks "providedwith geund 'wheels, supp'oits fixeden said "upstanding ends and susending saidframe bars-and tongue from said and rendering said *sha-nks vertica-hysWinga-ble on a transverse axis aranged a substantial distance abovesaid frame bars and tong'ue, a beam arch fixed to Said frame bars,vertically swingahle plow beams haviiig couplings eoiifined to and 'r0-on the lower ends of said heain arch, draft appliances appl ied t'o saidbeain arch, and draft bars having difect plow-beam liftingconnectionwith said plow beam eonpiings and extending therefrom to said shanks tocontrolthe swingfthereof.

2. In a cultivator, in eembinatioa; a 1011- gitudi nal main framer'ovided iiiith and carrying a rearwardly extending seat 3111)- porthaving aseat, an 'a rched axle having el'o'iighted ineli ned dependingshanks at their *IoWe'r ends provided with supporting lee wheels,supporting means suspending said main frame from said axle and providinga transverse axis a substantial distance above said frame and seatsupport on which said shanks swing vertically, whereby the weight of theframe and its load tends to swing the shanks and force the wheelsrearwardly with a relatively short drop of the frame and its seatsupport, vertically swingable .plow beams, couplings connecting the.front ends of the beams to the frame, and draft bars extending forwardlyfrom the shanks and having leverage connection with said plow beams, thedraft being applied to theshanks through said bars, said barscontrolling the swing of said shanks, the tendency of the shanks toswing rearwardly under the weight of the frame being applied to aid inlifting the plow beams through the medium of said draft bars andleverage connection.

3. In a cultivator, in combination, a central longitudinal tongue, framebars fixed thereto and extending rearwardly atopposite sides thereof, across member beneath said tongue and bars and fixed thereto and havingupstanding ends, a seat support extending rearwardly from said bars andprovided with a rear seat, an arched axle embodying elongated inclineddepending shanks provided with ground wheels, sup ports fixed on saidupstanding ends and suspending said frame bars and tongue from said axleand renderingjsaid shanks vertically swingable on a transverse axisarranged a substantial distance above said 1 frame bars and tongue,draft barsapplied to 1 said shanks and controlling the swing thereof,and verticallyswingable plow beams.

4C. In combination, a frame, a swingable arched axle provlded with framesupporting wheels, the weight of the frame and its load constantlytending to swing said axle and :move-the wheels and permit the frame todrop, a vertically-swingable implement beam coupled to the frame, and anautomatic variable beam-lifting leverage connection fbetween the axleand beam.

"said frame, and having automatically variable-leverage operativeconnection with said beam to exert lifting action thereon.

6. In combination, a riding wheeled cultivator frame, a swingable archedaxle upholding said frame and provided with supporting wheels, avertically-swingable shovel beam coupled to the frame,and a draft barcoupled to the axle,,operative leverage con- 'nection. with said beamfor exerting lifting pull on said beam through the medium of saidconnection to aid the operator in lifting said beam, said beam whenbeing depressedexertmg pull en sa d her through said leverage connectionto swing the axle and elevate the frame, said leverage automaticallyincreasing as said beam is swung up from its operative lowermostposition and automatically decreasing as said beam is forced down fromelevated position to operative position.

7. In combination, a riding wheeled cultivator frame, a swinging archedaxle upholding said frame and provided with supporting wheels, avertically swingable shovel beam coupled to the frame and provided witha vertically elongated leverage extension, and a draft bar coupled tothe axle to control the swing thereof and sustain the same against theweight of the frame and its load and having rolling connection with saidextension to exert lifting pull on said beam and to automatically rolldown the extension as the beam is swungupwardly and up said extension asthe beam is forced downwardly.

8. In combination, in a wheeled riding straddle-row cultivator, a mainframe, frame supporting mechanism arranged to permit said frame to dropunder the weight of its load, vertically-swingable shovel beams coupledto said frame, and means normally holding said mechanism in operativeposition supporting said frame in elevated position, said meansembodying automatically-variable leverage connections with said beamsexerting lifting action on said beams under the weight of the frame andits load.

9. In combination, in a wheeled riding straddle-row cultivator, a mamframe'pro 'vided withthe operators seat, frame supporting mechanismmovably arranged to permit downward movement of the frame under theweight of its load, verticallyswingable cultivator-beams, couplingdevices between said beams and the frame and through which said beamsare drawn forwardwith the frame, and draft devices from said mechanismto the frame through said 7 coupling devices and normally holding saidmechanism to maintain the frame elevated,

said draft devices being maintained under tension by the weight of saidframe and its load and thereby maintaining a lifting pull onsaid beamsthroughthe medium of said -couplings,said draft devices havingautomatically shifting connection with said couplings to increase thelifting pull on the .beams as the beams are elevated and to decrease thelifting pull on the beams as the beams are depressed.

10. In combination, a wheeled cultivator main frame provided with theoperators seat, frame upholding mechanism, a vertically-movable shovelbeam coupled to the frame and receiving its draft therefrom, and draftdevices normally holding said mechanism to maintain the frame inelevatedpositlon, said devices having leverage connecw;

litlti tion with said beam and} exerting lifting pull thereon under theweight of the frame and its load, said connection being variable toautomatically increase the lifting leverage of the devices on the beamas the beam is elevated and to automatically decrease the liftingleverage of the devices on the beam as the beam is depressed, themovement of said devices with respect to said mechanism being controlledby the vertical position of said beam.

11. In combination, a mainframaa swing able arched axle upholding theframe and provided with supportingwheels, a vertically swingable shovel;beam coupled" to the frame and having a vertically disposed guidnwayswingable therewith, and a draft bar controlling the swing of said axleand the elevation of the frame and provided with a roller confined toand vertically movable on said guideway, substantially as described.

12; In combination, a riding wheeled cultivator main frame, a swingablearched axle upholding the same and provided with su porting wheels, avertically swingab "e shovel beam coupled to the frame, a dependinglever arm swinging with the beam, and a draft bar controllingthe swingof the axle and having rolling connection with said lever arm.

13. In combination, a ridingwheeled cultivator main frame, a swingablearched axle upholding the same and provided with sup porting wheels,vertically swingable shovel bea-msfcoupling devices between'said beanieand the frame and each embodying an el0ngated vertically disposedcoupling pin, and draft bars controlling the swing of the axle and attheir front ends confined to said pins and movable longitudinallythereof as the beams swing vertically.

14. In combination, a wheeled cultivator main frame, a swingable archedaXl'e, upholding the same and; provided with supporting wheels,vertically-swingabl'e shovel beams coupled to the frame and havingdepending lever arms, said axle having portions depending below theaxial line of the wheels, and draft bars having operative connectionwith said axle portions and at their front ends directly coupled to.said lever oi the beams to exert lifting pull th re n.

.5;.QQI l ill l2l l-a heele cul i at main frame having a horiaontal axisto h ch, the is nnl fedi mech ni for unhe iding the firam an me hanismbe n inevahl to. permit l mited drep Q ithe ra n un er eight. of. its.lead arid to. ra se th time to. animal smeanesit i ai a slievel beamemailing, batman said be m. aid ax s and 9 .1. which the be is swingablvertically, said; equaling embe r ng pin arranged to'one side of saidaxis and depend ing below the horizontal plane including said axis and.forming an elongated guide way and lever member rigid with the beam onvertical swing and havin a lower end stop, said mechanism embo ying adraft bar maintained under longitudinal'pull by the weight of the frameand having a yoke or fork loosely receiving said pin and a rollerbearing thereon and movable longitudinally thereof as the beam swingsverc l lv- 16. In combination, in a riding wheel-ed cultivator. a mainframe, vertically and laterally swingabl e; shovel beams, couplingsbetween the front ends of said beams and the frame and swingablevertically with the beams, each coupling embodying a vertically disposedcoupling pin, rigid therewith, and frame upholding draft bars at theirfront ends operatively connected to, said coupling P usqoai ina i ariding le l- IW ltQ I ra e, s ppor ng h el on hi he frame s adapt d t eba nce lbv the e ght cf he Ope at r, said. fr m emrr sts, spa ed. l g tdina frame a s, and a sea suppor fo m ng a ng tudina rearard. cont a iono a d. frame d a ing a s at its rear po t on, ai seat suppor be g l i lal ongitudina y f said, rame are.

18- n combina ion, n a id ng W ele l ivat a hori n ally disposed mainframe pro ded wi h su orting heels on wh ch the frame is approximat ly bance by tl'ieve g i of. the p r r; a seat suppor mpris ng bars, arrangelongitudinally o said iram d fqrmi g. rear ard on i ati n ther o and at,the rrear ends provided ith the el -a:atorsv seat, said upport, being adstab l it din y of aid framev nd means whereby said support issvvingable er ca ly vary th evat on f its rear end Y l r saect t s idfram ,211.1 mbina i ni a r ding whe le cultivator, main frame,longitudinal bars, rotat lv adjns le locks carri y s bar and harms edgesarranged t cl 'fi en dist nce from, the axi of r t tio nd; a

seat s 1. 1 p.p,ort having a, seat: and comprising l o. a l2u. 11 nalbars arr n e l e y an li ablv beside sai fr me has and at th nt re ilons. having pr jec ions l osely ngaging the under ges oi the r me ba bydges of aidv blocks.-

20r-i Ina, cnl'ti a qlt, n c mbinat on, a main tr inee. p o ided lth anda ry n a rearal l eat sunenr bars, testi g 011 an pheld wardlv ex endingsea support, n, r h d,

axle having. e eligate l depe ding in n at the r low r ends, presided isurpertnla Wh ela sepne mg means sue panama said: traxae, iron s id zaxl and' rim a t ansv rs arrang d wi l times above said frame and onwhich said shanks are vertically swingable under the weight of the frameand its load, vertically swingable plow beams, each beam having adepending lever member swingable vertically therewith, said axle shankshaving rigid extensions dependin below the axial line of said wheels,and pu 1 connections operatively connecting said lever members with andapplying the draft to said shank extensions and controlling the swing ofthe shanks under the Weight of the frame and exerting lifting action onsaid beams.

21. In a cultivator, in combination, a main frame provided with a seat,depending inclined axle shanks pivotally joined to and supporting saidframe and constantly tending to swing vertically under the weightthereof, said shanks provided at their lower ends with supportingwheels, a beam arch depending from said frame, draft appliances appliedto said arch, vertically swingable plow beams coupled to said arch, andpull connections directly and operatively connecting said beams to saidshanks and controlling the swing of the shanks and applying the draftthereto and coupled to exert a leverage lifting action on said beamsunder the weight of the frame.

22. In a cultivator, in combination, a main frame provided with a seatsupport, depending inclined axle shanks pivotally joined to andupholding said frame and provided with supporting wheels, verticallyswingable plow beams coupled to and drawn forward with the frame, anddirect pull and leverage draft connections to and controlling the swingof said shanks and operatively connected with said beams to aid inmaintaining said beams depressed when in operative position and to aidin lifting said beams when being swung up from operative position, saidconnections being maintained under constant rearward pull by the weightof the frame and its load.

Signed,

' JOHN M. WRIGHT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

